DE201981C - - Google Patents
Info
- Publication number
- DE201981C DE201981C DENDAT201981D DE201981DA DE201981C DE 201981 C DE201981 C DE 201981C DE NDAT201981 D DENDAT201981 D DE NDAT201981D DE 201981D A DE201981D A DE 201981DA DE 201981 C DE201981 C DE 201981C
- Authority
- DE
- Germany
- Prior art keywords
- elliptical
- tubes
- feet
- spider
- arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000239290 Araneae Species 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims 1
- 230000000284 resting Effects 0.000 claims 1
- 210000003746 Feathers Anatomy 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE201981C true DE201981C (ko) |
Family
ID=464499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT201981D Active DE201981C (ko) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE201981C (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827702A (en) * | 1955-09-26 | 1958-03-25 | Robert F Montavon | Drafting instrument |
-
0
- DE DENDAT201981D patent/DE201981C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827702A (en) * | 1955-09-26 | 1958-03-25 | Robert F Montavon | Drafting instrument |
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